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01-20-2020, 11:04 AM
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#1
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Member
Join Date: Feb 2019
Posts: 66
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Upgrading battery to lithium
Does anyone know what brand the 2019-20 Rockwood Ultralights use for charging converters? A recent article by RV electricity guru Mike Sokol https://www.rvtravel.com/rv-electric...thium-battery/ says that you need to be aware if your converter has a setting for lithium batteries which is determined by what company makes the converter. Thanks in advance!
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01-21-2020, 01:31 PM
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#2
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Senior Member
Join Date: Jul 2012
Location: North East Ohio
Posts: 148
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I’ve been looking at 2020 Rockwoods since my wife and I saw one at the Cleveland RV Show. Nobody has mentioned anything about lithium compatible converters so my guess is that they are not compatible. But now I’m curious to know.
Do you already have lithium batteries or just thinking about a conversion?
__________________
2020 ROCKWOOD Ultra-Lite RLT2608BS
2015 RAM 2500 4X4, 6.4l hemi, 6sp auto, 3:73 diffs
Equalizer 10,000lb hitch with 1K bars
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01-21-2020, 01:40 PM
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#3
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Always Learning
Join Date: Nov 2011
Location: Four Corners, FL
Posts: 21,891
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The good news is, swapping out the converter is usually fairly trivial and not very expensive.
I went nuts and not only installed a new inverter, I put it as closet to the batteries as I could get it. I saw a huge jump in battery charging speed by doing so.
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Officially a SOB with a 2022 Jayco Precept 36C
Checkout my site for RVing tips, tricks, and info | Was a Fulltime Family for 5 years, now we're part-timing on long trips
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01-21-2020, 04:15 PM
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#4
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Member
Join Date: Feb 2019
Posts: 66
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Quote:
Originally Posted by Swaggler
I’ve been looking at 2020 Rockwoods since my wife and I saw one at the Cleveland RV Show. Nobody has mentioned anything about lithium compatible converters so my guess is that they are not compatible. But now I’m curious to know.
Do you already have lithium batteries or just thinking about a conversion?
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Still doing my research, no purchase yet.
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01-21-2020, 04:17 PM
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#5
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Member
Join Date: Feb 2019
Posts: 66
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Quote:
Originally Posted by ependydad
The good news is, swapping out the converter is usually fairly trivial and not very expensive.
I went nuts and not only installed a new inverter, I put it as closet to the batteries as I could get it. I saw a huge jump in battery charging speed by doing so.
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I’m not even sure where my converter is located. There is a box mounted on the inside of my a frame up front. I’m hoping that’s it?
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01-21-2020, 04:56 PM
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#6
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,849
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Quote:
Originally Posted by jefrec27
I’m not even sure where my converter is located. There is a box mounted on the inside of my a frame up front. I’m hoping that’s it?
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Converter is behind the fuse/breaker panel.
__________________
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.) 
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity
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01-22-2020, 09:53 AM
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#7
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Member
Join Date: Feb 2019
Posts: 66
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Quote:
Originally Posted by bikendan
Converter is behind the fuse/breaker panel.
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I would not have thought to look there, will check it out!
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01-22-2020, 05:47 PM
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#8
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Senior Member
Join Date: Jun 2016
Location: Mid Michigan
Posts: 1,098
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If you go to the Battle Born site they will tell you if your converter will work with lithium batteries.
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01-22-2020, 06:32 PM
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#9
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Member
Join Date: Jul 2013
Location: Canada
Posts: 53
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Lithium converter
WFCO makes a converter/charger compatible with lithium iron phosphate batteries.
WF9850L2 is the complete unit
WF8959L2-MBA is the replacement mother board for all WF 8900 series power centres.
I have the board replacement and 2 Lynac lithium technologies 100AH batteries. It was the best conversion deal out there. Your existing charger will not supply enough voltage to properly charge the lithium batteries.
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01-23-2020, 01:03 AM
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#10
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Senior Member
Join Date: Jul 2017
Location: California
Posts: 7,616
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Quote:
Originally Posted by Leprechauner
WFCO makes a converter/charger compatible with lithium iron phosphate batteries.
WF9850L2 is the complete unit
WF8959L2-MBA is the replacement mother board for all WF 8900 series power centres.
I have the board replacement and 2 Lynac lithium technologies 100AH batteries. It was the best conversion deal out there. Your existing charger will not supply enough voltage to properly charge the lithium batteries.
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Progressive makes one too. It's the Wildkat model. Personally, I would never use a WFCO.
This one converts to lithium profile with a jumper change.
http://www.bestconverter.com/PD4655M...l#.Xik3RYh7kdU
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01-23-2020, 01:24 AM
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#11
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Senior Member
Join Date: Jul 2017
Location: California
Posts: 7,616
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Quote:
Originally Posted by ependydad
I went nuts and not only installed a new inverter, I put it as closet to the batteries as I could get it. I saw a huge jump in battery charging speed by doing so.
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I did the same. I get the full 60A out of my converter right until the batteries are full.
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01-29-2020, 09:03 AM
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#12
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Member
Join Date: Feb 2019
Posts: 66
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Quote:
Originally Posted by markb422
If you go to the Battle Born site they will tell you if your converter will work with lithium batteries.
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Markb422- Went to the site, but didn't see any reference to your suggestion. Can you provide a link? Or did you mean to call them? Thanks.
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01-29-2020, 09:09 AM
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#13
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Senior Member
Join Date: Jun 2016
Location: Mid Michigan
Posts: 1,098
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You can call them toll free 855-292-2831 tell them the model of your converter.
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01-29-2020, 09:18 AM
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#14
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Senior Member
Join Date: Jan 2020
Posts: 712
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In the boating world, the fuse/circuit breaker panels are separate from the conveters (power supplies). It makes things a bit easier when figuring out where to place everything. As ependydad mentioned getting the converter close to your batteries is helpful. This is true for all of your higher amperage runs. Plus, copper is expensive so if I can have a shorter run of thick wire I am happier. You can get some really nice converters that are very kind to your batteries when you go that route.
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Hobienick
2022 Grand Design Imagine 2800BH
2020 Rockwood Roo 19 (Sold Jul 2022)
2012 F150 SuperCrew Ecoboost
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